Windows 8.0 ISO Download Problem

Hi There Slight problem with getting a new copy of the ISO of Windows 8.0, Seem to have lost the original email with link to get it, the Product key only one says we cannot connect right now error, I have ran chkdsk, disabled Avast when trying it, (didn't help) Have so many flash drives, with possible 8.0 or 8.1 versions, don't know if my key is blocked from doing 8.1 ISO install prior to...